Figure 6.

A 45-year-old man presented with emaciation and loss of appetite. He was later diagnosed with MEN2A. (A) 99mTc-MIBI image showed bilateral thyroid enlargement, and some nodules were “cool nodules”. Also, the lesions were pathologically confirmed as medullary thyroid carcinoma. (B) CT and fusion images showed that image agents were concentrated in the parathyroid area. Clinically, the lesion was diagnosed as parathyroid hyperplasia. (C) Axial contrast-enhanced CT image showed that several low-density nodules (arrows) in the bilateral thyroid gland were uneven and obviously enhanced. The enhancement degree was lower than that of normal thyroid tissue. (D) Axial contrast-enhanced CT image showed inhomogeneous enhancement of multiple nodules (arrows) on both sides of the adrenal gland. The lesions were pathologically confirmed as bilateral adrenal pheochromocytomas. MEN2A, multiple endocrine neoplasia type 2A; CT, computed tomography